Method of making engine block sealer



United States Patent 2,729,568 METHOD OF MAKING ENGINE BLOCK SEALER Vergil J. Metcalf, Glencoe, Okla.

No Drawing. Application September 1, 1954, Serial No. 453,685

1 Claim. (Cl. 106-33) The present invention relates to a new and improved sealing composition, and more particularly to a composition for use in sealing or stopping leaks in vehicle engine blocks, hot water circulating systems and the like.

The object of the invention is to provide a sealing composition which will permanently stop a leak in a circulating hot water system such as a vehicle radiator or engine block, without injuring the engine.

Another object of the invention is to provide a sealing composition for stopping leaks in engine or motor block heads wherein in one form of the invention the composi tion includes powdered aluminum. sugar, sodium silicate. and powdered iron. the added sugar serving to coat the particles of aluminum so as to make the aluminum more sticky whereby it will have a greater ability or possibility of collecting on the part to be repaired and wherein the aluminum will be given increased weight so that it will flow and circulate more efiiciently in the cooling system of the engine.

A still further object of the invention 15 to provide a free flowing sealing composition which may include a dye added thereto that will give the composition an identifying color and wherein the dye may also provide a film on the particles of the composition.

Other objects and advantages will be apparent during the course of the following description.

To the accomplishment of the foregoing and relatqd ends, the invention, then, comprises the features hereinafter fully described, and particularly pointed out in the claim. the following description setting forth in detail certain illustrative embodiments of the invention, these being indicative however of but a few of the various way in which the principle of the invention may be employed.

It has now been found. in accordance with the present invention. that by mixing together sodium silicate, powdered aluminum, sugar, and powdered iron. that there is provided a novel sealing composition for stopping leak in radiators of engines and the like. in addition to the previously mentioned ingredients, a dye or suitable coloring agent can be added to the mixture to impart a distinctiveness to the composition.

The composition is in the form of a liquid and is used for sealing cracks in engine blocks of automobiles, truck engines and the like wherever such engines are water cooled. One form of the sealing compound of this invention which may be employed in carrying out the method or methods herein described is made up of ingredients given in the following formula:

1 ounce of powdered cast iron 1 ounce of powdered aluminum 20 ounces of sodium silicate Another example of the ingredients for making up the sealing composition is as follows (the following formula serving to make up one pint of sealing compound):

20 ounces of sodium silicate 1 ounce of powdered aluminum A coloring agent or dye The dye is used for coloring the compound so that the compound will resemble the block or metal that is being sealed. In actual practice the compound is placed in the radiator of the automobile or truck or other engine, and

5 then the engine is started so that the fluid will circulate through the engine. Then the compound is drained out along with the water in the radiator, but the compound will have previously entered the cracks or crack in the engine in sufficient quantity to seal the crack so that leaking will be positively prevented. This compound will stay in the block even after the water is drained from the block in succeeding uses.

As a further illustrative example, a sealing compound can be made up of the following ingredients:

1 part powdered aluminum 2 parts whitesugar 17 parts sodium silicate 1 part powdered'cast iron 20 l ln formulating this last composition. the powdered aluminum and white sugar are mixed tog ther and added to a suitable quantity of water and then boiled until the mixture thickens. Then the mixture is permitted to cool after which the sodium silicate is added and also the powdered cast iron is added and a small quantity of powdered aluminum syrup can be added to the mixture. By adding the sugar and boiling it with the powdered aluminum, the aluminum will be coated to make it more sticky and thereby increase the chance of having the aluminum collect on the part or in the part to be repaired. Furthermore, the sugar gives the aluminum more weight so that the aluminum will how and circulate more efiiciently in the cooling system to provide a more permanent sealing job. The last named formula will service a cooling system having approximately a capacity of sixteen quarts of liquid.

When the compound is used in a hot water circulating system, it will seep through any cracks or the like in the head or radiator and then will solidify when the water evaporates so that a seal will be provided. The powdered aluminum and iron cause the compound to become firmly bonded to the metal of the article being repaired. The sodium silicate will react mildly with the article such as the engine being repaired and serve to clean the surface of the material so that a better adhesion will result. When the sodittm silicate dries, it will leave a residue that has strong adhesive properties. However, he reactions of the various ingredients that have been set forth herein are used in a descriptive manner only and shall not limit the scope of the invention. The examples and modifications included herein are merely illustrative and it will be understood, of course, that the invention is to be taken as limited only by the scope of the appended claim. What is claimed is: 59 method of making a free flowing sealing composition for use in stopping leaks in hot water circulating systems, comprising the steps of adding one part by weight of powdered aluminum to two parts by weight of white sugar and then adding a quantity of water, and then boiling the mixture until ebulition takes place whereby the sugar coats the aluminum and increases the stickiness and weight thereof. and then permitting the mixture to cool and adding 17 parts by weight of sodium silicate, plus one part by weight of quantity of powdered cast iron and 1 part by weight of powdered aluminum to the mixture.

References Cited in the file of this patent UNITED STATES PATENTS 2,482,925 Mercer Sept. 27, 1949 

